Granted Patent
Utility
US 6,609,072 · App. 09/204,381
Information terminal device, input/output control method and storing medium
Inventor:
Hideto Yamagata
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Dec 2, 1998
Inventor
Hideto Yamagata
Assignee (at issue)
NEC CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.